🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.47 AU - 0.55 AU

Year: 132 Days

Day: 36.1 Hours

Environment

Temp: 236 °C

Axial Tilt: 34.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.9 AU - 0.94 AU

Year: 319 Days

Day: 40 Hours

Environment

Temp: 111 °C

Axial Tilt: 34.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.06 AU - 1.64 AU

Year: 567 Days

Day: 30 Hours

Environment

Temp: -20 °C

Axial Tilt: 36 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 90,489,363 km

• M1: 250,876 km (0.038 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.06 AU - 1.66 AU

Year: 574 Days

Day: 36.5 Hours

Environment

Temp: 5 °C

Axial Tilt: 8.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.21 AU - 2.39 AU

Year: 1261 Days

Day: 31.4 Hours

Environment

Temp: -82 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.88 AU - 4.82 AU

Year: 3281 Days

Day: 29.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.06 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.2

Radius: 10.9

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 5.09 AU - 6.43 AU

Year: 4999 Days

Day: 10.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 90,489,363 km

• M1: 139,425 km (0.108 R)
• M2: 224,247 km (0.111 R)
• M3: 358,736 km (0.076 R)
• M4: 480,957 km (0.099 R)
• M5: 613,950 km (0.081 R)
• M6: 735,274 km (0.08 R)
• M7: 899,233 km (0.099 R)
• M8: 1,068,578 km (0.076 R)
• M9: 1,142,329 km (0.1 R)
• M10: 1,218,026 km (0.106 R)
• M11: 1,319,154 km (0.118 R)
• M12: 1,597,256 km (0.104 R)
• M13: 1,752,240 km (0.088 R)
• M14: 2,031,240 km (0.097 R)
• M15: 2,180,838 km (0.114 R)
• M16: 2,324,452 km (0.105 R)
• M17: 2,651,772 km (0.075 R)
• M18: 2,723,130 km (0.071 R)
• M19: 3,089,645 km (0.096 R)
• M20: 3,208,126 km (0.092 R)
• M21: 3,550,406 km (0.077 R)
• M22: 3,629,394 km (0.092 R)
• M23: 3,731,719 km (0.037 R)
• M24: 3,858,129 km (0.059 R)
• M25: 3,986,035 km (0.115 R)
• M26: 4,402,366 km (0.114 R)
• M27: 4,475,220 km (0.082 R)
• M28: 4,548,374 km (0.081 R)
• M29: 4,696,027 km (0.104 R)
• M30: 5,034,118 km (0.109 R)
• M31: 5,458,078 km (0.064 R)
• M32: 5,800,209 km (0.095 R)
• M33: 5,947,114 km (0.109 R)
• M34: 6,258,277 km (0.102 R)
• M35: 6,464,124 km (0.081 R)
• M36: 6,602,652 km (0.089 R)
• M37: 6,672,215 km (0.111 R)
• M38: 7,080,916 km (0.088 R)
• M39: 7,152,125 km (0.095 R)
• M40: 7,483,185 km (0.114 R)
• M41: 7,672,426 km (0.1 R)
• M42: 7,848,652 km (0.104 R)
• M43: 8,041,035 km (0.056 R)
• M44: 8,115,385 km (0.113 R)
• M45: 8,734,272 km (0.089 R)
• M46: 8,964,652 km (0.083 R)
• M47: 9,057,253 km (0.059 R)
• M48: 9,415,391 km (0.071 R)
• M49: 10,615,615 km (0.064 R)
• M50: 10,861,404 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 603.2

Radius: 3.5

Gravity: 49.24 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 14.1 AU - 21.92 AU

Year: 27641 Days

Day: 20.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 90,489,363 km

• M1: 177,573 km (0.058 R)
• M2: 444,754 km (0.113 R)
• M3: 794,365 km (0.084 R)
• M4: 850,015 km (0.093 R)
• M5: 1,682,826 km (0.1 R)
• M6: 2,051,884 km (0.066 R)
• M7: 2,903,695 km (0.111 R)
• M8: 3,992,767 km (0.068 R)
• M9: 4,136,980 km (0.054 R)
• M10: 4,282,987 km (0.063 R)
• M11: 4,781,298 km (0.082 R)
• M12: 5,670,058 km (0.105 R)
• M13: 5,777,919 km (0.088 R)
• M14: 6,950,616 km (0.053 R)
• M15: 7,066,106 km (0.098 R)
• M16: 7,534,198 km (0.067 R)
• M17: 7,771,909 km (0.081 R)
• M18: 7,891,736 km (0.067 R)
• M19: 8,072,600 km (0.086 R)
• M20: 8,872,201 km (0.118 R)
• M21: 9,123,226 km (0.036 R)
• M22: 9,249,636 km (0.076 R)
• M23: 9,825,588 km (0.061 R)
• M24: 10,347,086 km (0.115 R)
• M25: 10,810,989 km (0.112 R)
• M26: 11,213,856 km (0.115 R)
• M27: 11,896,322 km (0.091 R)
• M28: 13,587,975 km (0.073 R)
• M29: 13,660,081 km (0.112 R)
• M30: 14,461,626 km (0.057 R)
• M31: 15,278,431 km (0.052 R)
• M32: 15,957,605 km (0.111 R)
• M33: 16,033,750 km (0.041 R)
• M34: 16,339,229 km (0.069 R)
• M35: 16,492,716 km (0.088 R)
• M36: 16,569,759 km (0.108 R)
• M37: 16,878,529 km (0.118 R)
• M38: 20,482,043 km (0.096 R)
• M39: 20,730,525 km (0.098 R)
• M40: 21,146,706 km (0.109 R)
• M41: 26,351,366 km (0.077 R)
• M42: 30,215,628 km (0.036 R)
• M43: 32,598,274 km (0.104 R)
• M44: 32,985,134 km (0.056 R)
• M45: 34,056,554 km (0.094 R)
• M46: 34,252,527 km (0.101 R)
• M47: 40,201,585 km (0.114 R)
• M48: 42,500,007 km (0.088 R)
• M49: 47,332,018 km (0.096 R)
• M50: 48,649,676 km (0.086 R)
• M51: 49,979,302 km (0.099 R)
• M52: 51,770,587 km (0.074 R)
• M53: 51,995,882 km (0.089 R)
• M54: 53,127,739 km (0.115 R)
• M55: 54,153,382 km (0.052 R)
• M56: 55,415,689 km (0.031 R)
• M57: 56,920,045 km (0.065 R)
• M58: 57,618,817 km (0.111 R)
• M59: 57,735,503 km (0.117 R)
• M60: 58,320,431 km (0.078 R)
• M61: 61,990,515 km (0.056 R)
• M62: 64,397,545 km (0.1 R)
• M63: 65,734,501 km (0.065 R)
• M64: 67,203,253 km (0.119 R)
• M65: 67,572,161 km (0.115 R)
• M66: 70,173,220 km (0.106 R)
• M67: 70,922,406 km (0.108 R)
• M68: 73,059,411 km (0.044 R)
• M69: 74,580,522 km (0.107 R)
• M70: 75,217,361 km (0.059 R)
• M71: 75,728,237 km (0.046 R)
• M72: 77,525,057 km (0.105 R)
• M73: 82,472,558 km (0.113 R)
• M74: 82,999,292 km (0.116 R)
• M75: 89,811,830 km (0.036 R)

Kuiper Belt

Range: 30.3 - 58.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 14,891 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit